| 白光LED灯用蓝色荧光粉的发光性能和结构 |
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| 引用本文： | 杨云霞,陈仙玲,袁双龙,曾惠丹,陈国荣. 白光LED灯用蓝色荧光粉的发光性能和结构[J]. 硅酸盐学报, 2006, 34(6): 671-674 |
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| 作者姓名： | 杨云霞 陈仙玲 袁双龙 曾惠丹 陈国荣 |
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| 作者单位： | 华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237;华东理工大学材料科学与工程学院,超细材料制备与应用教育部重点实验室,上海,200237 |
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| 摘 要： | 按2(Sr0.99,Eu2 0.01)O-0.16B2O3-0.84P2O5配料以固相法合成蓝色荧光粉.该荧光粉在还原性气氛中,分别在1 100,1 150,1 200℃和1 250℃下进行焙烧.对不同温度下制成的样品进行X射线衍射分析,确定样品的晶体结构及晶相组成.通过测定样品的激发光谱和发射光谱,研究了焙烧温度对荧光粉结构的影响.结果表明:在1200℃下合成的荧光粉Sr6BP5O20为单一相,属四方晶系,P4/mmm空间群,晶胞参数分别为α=0 9794nm;c=0.951 6 nm,对应发射谱中478nm的发射峰;在低于1 200℃下合成的荧光粉中含有α-Sr3(PO4)2和α-Sr2P2O7 2个晶相,对应发射谱中420nm的发射峰.
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| 关 键 词： | 硼磷酸盐 蓝色荧光粉 光致发光 |
| 文章编号： | 0454-5648(2006)06-0671-04 |
| 收稿时间： | 2005-09-29 |
| 修稿时间： | 2006-01-30 |
FLUORESCENCE PROPERTY AND STRUCTURES OF 2SrO-B2O3-P2O5:Eu2+ PHOSPHOR POWDER FOR UV-LED APPLICATIONS |
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| YANG Yunxia,CHEN Xianling,YUAN Shuanglong,ZENG Huidan,CHEN Guorong. FLUORESCENCE PROPERTY AND STRUCTURES OF 2SrO-B2O3-P2O5:Eu2+ PHOSPHOR POWDER FOR UV-LED APPLICATIONS[J]. Journal of The Chinese Ceramic Society, 2006, 34(6): 671-674 |
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| Authors: | YANG Yunxia CHEN Xianling YUAN Shuanglong ZENG Huidan CHEN Guorong |
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| Affiliation: | Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | Blue phosphors with the formula of 2(Sr0.99, Eu2+0.01)O-0.16B2O3-0.84P2O5 were synthesized by a solid state reaction method.Phosphors were calcined at 1 100, 1 150, 1 200 ℃ and 1250 ℃ under a reducing atmosphere. Photoluminescence spectra of these phosphors were measured. The effects of calcining temperature on structural variations of the phosphors were investigated. According to X-ray diffraction results, the crystal assembly of the sample calcined at 1200 ℃ is Sr6BP5O20 with a unitary tetragonal phase in the P4/mmm space group with the cell parameters a and c as 0.979 4 nm and 0.9516 nm, corresponding to the emission at 478 nm. In the case of phosphors synthesized at temperatures lower than 1200 ℃, α-Sr3(PO4)2 and α-Sr2P2O7 phases were found with the emission at 420nm. |
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| Keywords: | borophosphate blue phosphors fluorescence spectra |
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